Abstract: A Release Agent Management (RAM) system for a heat and pressure fuser apparatus utilized for fixing color toner images on substrates such as plain paper and transparency material such as Mylar.TM.. A donor/metering roll arrangement is provided with two oil metering blades, one of which is operative during two modes of operation and the other of which is operative during only one of the two modes of operation. During one mode of operation when color toner images are formed on a substrate such as plain paper, only one of the two blades is utilized. During a second mode of operation when color toner images are created on a transparent substrate such as Mylar.TM., both blades engage the surface of the metering roll so that a lesser amount of oil is ultimately conveyed to the surface of the heated fuser roll.

Abstract: A RAM system including a metering roll and a pair of metering blades, is positioned in contact with a metering roll at a location intermediate, a nip formed through pressure contact of the metering roll with a donor roll, and a supply of release agent material such that as the metering roll is rotated in the imaging process direction release agent material is metered onto the metering roll and contaminants are prevented from getting deposited on the fuser roll. A second metering blade contacts the metering roll at a location that is intermediate the aforementioned nip and the supply of release agent such that when the metering roll is rotated in the direction opposite to the process direction excess release agent material and/or contaminants are prevented from being deposited on the fuser roll.

Abstract: An apparatus for fusing toner images to a substrate. A Release Agent Management (RAM) system for applying silicone oil to a metering roll utilizes a pair of metering blades to improve oil uniformity on the metering roll. Thus, streaks or localized areas of excess silicone oil as the result of blade defects and/or dirt accumulation associated with a first blade, ARE metered or smoothed to a more uniform thickness by the second blade. To this end, the first metering blade serves to meter silicone oil to a first predetermined thickness while the second blade serves to meter oil streaks to a second predetermined thickness which is greater than the first predetermined thickness.